Inventor
SPELLER CHARLES HUBERT
US20 patents
⚠️ This page may combine multiple inventors who share the name “SPELLER CHARLES HUBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TEXTRON INNOVATIONS INC
13 patentsUS11731779B2Aug 22, 2023
Drivetrain for an aircraft including gearbox with coaxial input and output shafts
TEXTRON INNOVATIONS INC5 citations73
US10875640B2Dec 29, 2020
Mast lockout systems for tiltrotor aircraft
TEXTRON INNOVATIONS INC5 citations71
US10843798B2Nov 24, 2020
Mast lockout systems for tiltrotor aircraft
TEXTRON INNOVATIONS INC6 citations71
US10960972B2Mar 30, 2021
Rotorcraft masts having a nonintegral raceway
TEXTRON INNOVATIONS INC3 citations70
US11852232B1Dec 26, 2023
Persistent lubrication systems for aircraft gearboxes
TEXTRON INNOVATIONS INC2 citations68
US11391362B2Jul 19, 2022
Oil pump receiving bore lip
TEXTRON INNOVATIONS INC2 citations63
US11420760B2Aug 23, 2022
Sealed coaxial input and output shafts
TEXTRON INNOVATIONS INC1 citations62
US12473083B2Nov 18, 2025
Electric tiltrotor aircraft with tilting coaxial motors and gearbox
TEXTRON INNOVATIONS INC0 citations61
US12434823B2Oct 7, 2025
Electric tiltrotor aircraft with fixed motors
TEXTRON INNOVATIONS INC0 citations61
US11358731B2Jun 14, 2022
Clutch with synchronizer and locking mechanism
TEXTRON INNOVATIONS INC0 citations61
US10611496B2Apr 7, 2020
Power allocation systems for aircraft
TEXTRON INNOVATIONS INC1 citations59
US11708156B2Jul 25, 2023
Friction welded raceways for use in rotorcraft propulsion assemblies
TEXTRON INNOVATIONS INC0 citations58
US12208886B2Jan 28, 2025
Axially biased nonintegral raceways for rotorcraft masts
TEXTRON INNOVATIONS INC0 citations53
BELL TEXTRON INC
5 patentsUS11975826B2May 7, 2024
Electric tiltrotor aircraft with fixed motors
BELL TEXTRON INC1 citations61
US11814163B2Nov 14, 2023
Electric tiltrotor aircraft with tilting coaxial motors and gearbox
BELL TEXTRON INC0 citations61
US11772804B2Oct 3, 2023
Electric tiltrotor aircraft with offset tilting motors
BELL TEXTRON INC0 citations61
US11459088B2Oct 4, 2022
Rotor assembly
BELL TEXTRON INC1 citations61
US12092107B2Sep 17, 2024
Dual input pump assembly
BELL TEXTRON INC0 citations47